线性模型的信号估计精度是工程应用上非常重要的指标。
The signal estimation precision of the linear model is an important index in applied project.
这种方法可以更好地跟踪信道变化，显著地消除接收到的导频信号中的加性噪声，提高信道估计精度。
Such method could better track channel change and eliminate the noise remarkably in the received pilot signal, and the precision of channel estimation had been improved.
利用相关积分方法的滤波特性可以有效地抑制测量信号中的噪声影响，提高参数估计的精度。
Using the filter property of correlative Integral, the effect of noise in measured signal may be effectively restrained and the precision of parameter estimation is raised.
为了提高FMCW雷达的距离测量精度，提出了一种基于差拍信号相位的距离估计方法。
To improve the range measurement accuracy a range estimation method for FMCW level radar based on the phase of the FFT of the beat-note signal is presented.
与基于分数低阶统计量的空域处理方法相比，该文提出的算法利用了信号在模糊域中的信息，提高了算法的估计精度。
Comparison with the spatial processing method using fractional lower order statistics, the proposed algorithm provides more precise DOA estimates by using the ambiguity domain information of signals.
为了提高FMCW雷达的距离测量精度，提出了一种基于差拍信号相位的距离估计方法。
The range measurement of the FMCW radar is based on the estimation of the frequency of the beat-note signal.
所得结论对提高信号质量和频谱估计精度有重要价值。
This conclusion is important for improving the quality of signals and the accuracy of spectrum estimation.
通过实验验证，AR模型谱估计可以作为一种较好的方法，用来处理流量计的输出信号，并且此方法得出的结果比计数方法得出的结果精度高。
Validated by the experiments, AR model spectrum estimation method is a good way to process flow signal and the results of it is more accuracy than the results that gain by count method.
声波信号时延的准确估计是实现强噪声环境下声学法高精度测温的关键。
Precisely estimated time delay of acoustic wave signal is very important to implementing the most accurately measurement of temperature using acoustical method in the strong noise environment.
为了实现水下载体高精度的定位，GPS声纳浮标需解决两个方面的技术难点：高精度的系统时钟同步和定位信号的高精度时延估计。
As for the high precision positioning of underwater targets, the GPS sonobuoy technique has two bottlenecks: high precision system clock synchronization and high accuracy time delay estimation.
理论和仿真结果都证明，在短数据信号情况下，这种谱估计方法其频率分辨率和估计精度都要高于FF T方法。
It's proved by theory and emulation that this spectrum estimation method has a better frequency resolution and a higher estimation accuracy than that of FFT under the condition of short data signal.
本文仔细研究了在高斯白噪声信道下、频率平坦衰落信道下和频率选择性衰落信道下高精度估计信号载频偏差的问题，并对相应算法提出了一些改进办法。
The problems of carrier frequency offset estimation under the condition of the AGWN channel, frequency flat-fading channel and frequency selective-fading channel are studied in detail respectively.
其关键的技术是如何实现对目标信号的实时准确检测以及目标方位的高精度估计。
The key technologies are how to realize the real-time signal detection and target azimuth accuracy estimates.
这就要求同时对宽频段广空域内多个辐射源的频率、到达角和极化等信号参量具有高精度、高分辨力的估计能力。
Then it is necessary to estimate the frequency, 2-i AOA and polarizations and other parameters of multiple signals in broad-band and in wide space.
通过实验室的模拟器调试和湖试的验证，证明了水声信号处理模块符合系统要求，具备较高的时延估计精度及可靠性。
Through lab simulator test and lake trial, the underwater signal processing module is proved to be satisfied with the system's demand and is with high time delay precision and reliability.
基于快速循环累积量实现了对LPI雷达信号频率的高精度估计。
Based on the fast cyclic cumulants method, the frequency of LPI signal was estimated accurately.
文中比较了三种融合估计的精度和计算负担，可应用于信息融合状态或信号最优估计。
Their precision and computational burdens are compared. They can be applied into optimal information fusion estimation for the states or signals.
以现代（非线性）谱分析理论为基础的超分辨空间谱估计技术，目的在于解决密集信号环境中的信号源高分辨和高精度测向定位问题。
The super-resolution algorithm based on modern spectrum analytical theory intends to improve DOA estimation quality in the presence of dense signals.
首先，本文从信号参数(幅度、频率、相位)估计入手，研究了直接法、细化频谱法和高精度FFT法等算法。
First of all, starting with the estimate of signal parameter (e. g. amplitude, frequency and phasic), it makes a research in algorithms of direct, subdivide the spectrum, high-precision FFT and so on.
新的算法克服了传统算法受地面场景非均匀性和回波信号起伏的影响，大大提高了估计的精度。
The new algorithm obviates the effects of non homogeneity in sight and fluctuations of echoes, and the precision of estimation is improved significantly. These algorithms ar...
新的算法克服了传统算法受地面场景非均匀性和回波信号起伏的影响，大大提高了估计的精度。
The new algorithm obviates the effects of non homogeneity in sight and fluctuations of echoes, and the precision of estimation is improved significantly. These algorithms ar...
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